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What is new in the 5th edition of the World Health Organization classification of mature B and T/NK cell tumors and stromal neoplasms? Journal of hematopathology Attygalle, A. D., Chan, J. K., Coupland, S. E., Du, M. Q., Ferry, J. A., de Jong, D., Gratzinger, D., Lim, M. S., Nicolae, A., Ott, G., Rosenwald, A., Schuh, A., Siebert, R. 2024

Abstract

The classification of tumors is essential in the diagnosis and clinical management of patients with malignant neoplasms. The World Health Organization (WHO) provides a globally applicable classification scheme of neoplasms and it was updated several times. In this review, we briefly outline the cornerstones of the upcoming 5th edition of the World Health Organization Classification of Haematolymphoid Tumours on lymphoid neoplasms. As is adopted throughout the 5th edition of the WHO classification of tumors of all organ systems, entities are listed by a hierarchical system. For the first time, tumor-like lesions have been included in the classification, and modifications of nomenclature for some entities, revisions of diagnostic criteria or subtypes, deletion of certain entities, and introduction of new entities are presented along with mesenchymal lesions specific to the stroma of lymph nodes and the spleen. In addition to specific outlines on constitutional and somatic genetic changes associated with given entities, a separate chapter on germline predisposition syndromes related to hematologic neoplasms has been added.

View details for DOI 10.1007/s12308-024-00585-8

View details for PubMedID 38683440

View details for PubMedCentralID 9214472